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Tuttnauer EA - Troubleshooting

Tuttnauer EA
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7.1
TROUBLE
SHOOTING
RULES
OF
THUMB
FOR
SERVICE
AT
THE
CUSTOMER
LOCATION:
a)
At
the
customer's
location,
avoid
replacing
anv
component
which
18
not
connected
to
a
socket
or
to
a
flat
cable.
If
the
necessary
occurs,
replace
the
complete
beard
or
box
then
try
and
service
the
damaged
part
at
the
service
lab.
b)
Whenever
the
AJUNC3
board
of
the
complete
electrical
assembly
(CB90030)is
replaced
without
replacing
the
pressure
transducer.
or
after
replacing
the
pressure
transducer,
the
pressure
must
be
re-calibrated.
c)
When
working
on
the
autoclave,
always
DISCONNECT
the
power
cord
from
the
socket
or
turn
the
circuit
breaker
OFF.
I
TURNING
ON
THE
SYSTEM,
NO
RESPONSE
a)
Check
the
voltage
at
the
terminal
(is
the
power
cord
:aterrupted?
and
change
the
power
cord
if
necessary
b)
Check
the
flat
cable
connecting
the
PREG
and
the
AJUNC3
and
replace
it
if
necessary
c)
Check
if
the
circuit
breaker
1s
OFF
and
turn
it
ON
d)
Check
the
cut
off
position.
Push
it
IN
and
turn
it
ON.
e)
Check
the
power
supply
input
fuse
and
replace
the
fuse
if
necessary.
If
the
network
input
is
OK,
the
problem
must
be
with
one
of
the
elements
along
the
line,
the
power
supply,
the
PREDG
or
AJUNC
boards
and
the
clements
they
are
connected
to.
f)
Check
the
voltages
by
means
of
connecting
the
Test
board
to
JP14
on
the
AJUNC
3
board
as
detailed
in
the
voltage
checking
procedure,
page
49.
IF
THERE
IS
NO
12
V
NOR
SV
:
a)
Does
the
power
supply
receive
the
network
voltage
?
b)
Is
the
power
supply
output
OK
?
Disconnect
the
connector
to
JP3
(AJUNC3
board
)
and
check
for
voltage
on
the
female
connector.
No.
12V
at
the
female
connector
indicates
a
faulty
power
supply
that
should
be
replaced.
At
the
client’s
location
replace
the
whole
electrical
box
(C
B
90030).
12V
at
that
location
indicates
that
the
power
supply
is
functioning
and
that
the
problem
is
somewhere
else.
c)
Check
the
AJUNC3
board.
Disconnect
the
fan
(JP5),
the
valves
(JP2)
and
the
printer
(if
present
).
If
disconnecting
any
of
these
elements
brings
up
the
voltage.
that
element
is
damaged
and
has
to
be
replaced.
d)
Disconnect
the
PREDG
board
and
the
printer
from
the
AJUNC
3
board.
If
any
of
these
elements
are
faulty,
5v
will
appear
as
it
is
disconnected.
If
there
is
still
no
5V.
the
power
supply
is
damaged.
33

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